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  <h1 class="title">Search engine files
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  <ul class="tags">
    
    <li><a href="../tags/search%20engine">search engine</a> </li>
    
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  <p>Any &quot;.search&quot; file can be opened as search engine file, each line of which has one of the following formats:<br>
[Engine name]:[url without '%s' inside]<br>
[Engine name]:[url with '%s' as keyword]<br>
[Engine name]:POST:[post params with '%s' as keyword]:[url]<br>
[Engine name]:[Extra request headers]:[post params with '%s' as keyword]:[url]</p>
<ul>
<li>[Extra request headers] Ex. &quot;X-Forwarded-For;8.8.8.8&quot;</li>
<li>when [post params] is empty, the url should have '%s' as keyword. Ex. <a href="../search/index.html">bingUS engine w/ chatgpt</a></li>
</ul>
<p>Limitations (they are here for performance reasons):</p>
<ul>
<li>The first engine in the file must be the first type that has no '%s' in the engine url.</li>
<li>Internal scheme engine urls (such as i:, d:, c:) must have '%s', since '%s' format is more general (only type 2 is allowed, since POST makes no sense for internal schemes).</li>
</ul>
<h4 id="local-engines">Local engines</h4>
<p>c:[command line with '%s' as keyword]<br>
d:mimetype:[command line with '%s' as keyword]:[base url for external resources]</p>

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<p>Last Modified: 4 March 2023<br>
i:0m to support extra headers<br>
<pre></pre>
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